Automatic bag-filling and weighing machine



Nov. 9, 1937. R. JARRIER 2,

AUTOMATIC BAG FILLING AND WEIGHING MACHINE Original Filed March 24, 1932 2 Sheets-Sheet 1 v INVENTOR,

E'enJarr/er RNEYS Nov. 9, 1937. R. JARRIER AUTOMATIC BAG FILLING AND WEIGHING MACHINE Original Filed March 24, 1932 2 Sheets-Sheet 2 INVENTOR,

Eene Jarr/er Patented Nov. 9, 1937 UNITED STATES PATENT OFFICE AUTOMATIC BAG-FILLING AND WEIGHING MACHINE Ren Jarrier, Saint Quentin, France, assignor to Bartlett Arkell, New York, N. Y.

Application March 24, 1932, Serial No. 600,884. ztelrgervied January 25, 1936. In France April 10 Claims. (Cl. 198-128) My invention relates to bag filling machines, It will be apparent that with this construction and has special reference to automatic bag filling the material is urged from left to right by the and weighing machines. feed screw 8 and is forced to enter between the One of the objects of my invention i t proscoops or blades of propeller 2. Propeller screw vide a novel and improved machine of this char- 9 acts in like manner, but n the pp direeacter. tion, upon material which falls along the adjacent Another of the objects of the invention is to Side Wall Of the pp to force the material provide a, bag filling machin whi h i simple in sidewise between the blades of the propeller. The construction and emcient in operation small wheel l0, which like the screws 8 and 9 10 The several features of my invention, whereby turns in the pp direction from Propeller 10 the above-mentioned and other objects may be has the effect of urging h ma erial on o th attained, will be readily understood from the folperiphery of Said P p us eounteraet lowing description and accompanying drawings, the tendency of the material to be thrown from in which: the upper part of the wheel by centrifugal force.

Figure 1 is a sectional elevation of a machine In the form Shown in 3, the Propeller 15 embodying the features of my invention in their. is secured on Vertieel Shaft l2 and otates preferred form; rectly on the base of the hopper. The forced Fig, 2 :is a sectional elevation, on an enlarged feeding device, like the One above ed, may scale, tak on th ii 2-4 of Fj g 1; comprise a short Archimedean screw l3 which is Fig. 3 is a sectional elevation of a portion of a secured on the Shaft 12 With the Propeller 20 modif ed form of t machine; Also, a two-arm propeller 14 may be secured on Fig, 4 is a, view similar t 1, t howing the shaft [2 between the screw l3 and the proanother modified form; and I p er Fig. 5 is a side el vati of th upper portion With this construction also the feed screw l3 r of the machine shown i Fi 4, and the two-arm device l4 tend to force the Th ma h ill t t in Figs, 1 and 2 of material between the blades of the propeller 2, the drawings comprises a hopper I for receiving thus insuring maximum delivery of the ateria the material to be operated upon. Within this by the P pe e t ro the discharge t reat 5 hopper I there is a scoop wheel or propeller 2 and filler tube 5.

which is secured on a horizontal shaft 3. This It Will be sto that e machine y propeller turns a chamber or pocket 4, the upper be provided with the usual scale IS on a movable part of the propeller projecting above the pocket. bed Plate from which se s pp bag This pocket which is formed in the bottom of the holding device T bottom of the bag rests hopper leads into a discharge orifice or throat 5, On a Plate 24 W s height y be regulated at which in turn opens into the inner end of a, bag Will by means Of a handle 26. A fixed bracket 28 filling tub 6, supports the hopper I.

As shown, the propeller 2 is provided with One disadvantage of b filling achi e a radially projecting blades which are curved in present in eneral commercial use is that with the direction of rotation of the wheel. The sides he use of certain substances such as cement and of the wheel are arranged closely adjacent the plaster, the feeding is liable toqtake place in more vertical sides of the pocket 4. or less irregular manner and even stop completely The machine is further provided with a hori- Owing to the tendency of the material to pack zontal shaft 1 located parallel with and spaced and form an h above th feeding devices of above the propeller Wheel Sha This Shaft 7 the machine. Also, with these machines stones carnes a feed Screw 8 f propeller screw 9 or other foreign bodies mixed in with the mate- 45 arranged at opposite sides of the propeller 2. rial to e acted upon, are liable to damage the A small wheel in having radially pro ecting blades is secured on the shaft 1 directly above the proi i peller 2. The distance between the two shafts 3 8 mac me 1 ustrated m Figs 4 and and I is less than the combined radii of the prosmall feed screw 30 15 mounted on a shaft 32 peller 2 and screw conveyor 6 so that this screw Gated above and parallel 9 the shaft 3 of the conveyor extends a distance below the periphery peller 2. This screw is disposed above and at the of the propeller 2 and close to the bottom of the Side of the pr p 2 in Such er as to hopper I. The propeller screw 8 may have ianproject the material on to the paddles of the 55 shaped blades, as shown.

propeller. The shaft 32 is driven from the shaft l! of propeller 2, by gears lid and respectively secured on the shafts d and $32.

As the material passes into the feed hopper it is acted upon by a suitable mining and distributing device consisting of oblong or helicoidal paddle wheels 36 which are secured on shafts dd. These shafts are caused to rotate in opposite directions by gears id which engage one another. The distance between the shafts lid is such that any one of the paddles penetrates deeply into the space between two consecutive paddles of the pad-. dle wheel on the other shaft. One of the shafts 38 is driven by means of a sprocket chain d2 which passes over sprocket wheels on said shaft 38 and the shaft 32. This device comprising the paddle wheels 36 thoroughly es the material as it enters the hopper.

Between paddle wheels 3d and the screw 369, there is disposed a screen M which aids in dividing the material acted upon by the paddle wheels. The principal purpose of this screen is to sift out pebbles and other foreign bodies that may be present in the material. The foreign bodies caught by the screen, are brushed ofi by the paddle wheels so into lateral chambers M in the head of the machine which are in communication with the upper portion of the hopper 0 through suitably arranged openings [not shown] in said hopper. The screen may be vibrated by cams upon which it rests, one of the cams being shown at 48 and carried by the shaft 32. These cams M are better shown in Figs. 1 and 2. The two cams are diagonally displaced with respect to each other so that a rocking movement is imparted to the screen.

As will be evident to those skilled in the art, my invention permits various modifications without departing from the spirit thereof or the scope of the appended claims.

What I claim is:

1. In a bag filling machine of the class described, the combination of a hopper having a discharge'throat near its lower end and a pocket leading into said throat, a propeller having a substantially horizontal axis and blades projecting generally radially for propelling the material through the discharge throat, the wall of said pocket covering portions of thesldes' of said propeller adjacent said throat, and means for forcing the material sidewise toward the uncovered portions of the sides of the propeller and between the blades.

I 2. Ida bag filling machine of the class described the combination of a hopper having a. discharge throat near its lower end and a pocket leading into said throat, a propeller having a horizontal axis and having blades projecting generally radially for propelling the material through said discharge throat, the wall of said pocket covering portions of the sides of said propeller adjacent said throat, a screw conveyor within the hopper for feeding the material sidewise toward the uncovered portions of the sides of the propeller and between the blades of said propeller. and means for driving the propeller and said screw conveyor.

3. In a bag filling machine. of the class described, the combination of a hopper having a discharge throat near its .lower end and a pocket leading into said throat, a propeller having its axis arrangedsubstantially horizontal for propolling the material through said discharge throat, said propeller having blades extending substantially radially with at least the major portions or the blades below the axis or the propeller projecting into said pocket, and means *for directing the material downwardly upon the periphery of the propeller and for forcing it sidewise between said blades above the pocket.

d. in a bag filling machine of the class described, the combination of a hopper having a discharge throat near its lower end and an upwardly opening pocket in alinement with said discharge throat, said pocket leading into said discharge throat, a propeller mounted in. said pocket having its axis arranged substantially horizontal and its sides in proximity to the sides of the pocket, the upper portion of said propeller projecting above said side walls of the pocket, and said propeller having blades extending generally radially, and means for forcing the material sidewise between the portions of the blades projecting above said pocket.

5. In a bag filling machine of the class described, the combination oi a hopper having a discharge throat near its lower end and an upwardly opening pocket in alinement with said discharge throat, said pocket leading into said discharge throat, a propeller mounted in said pocket having its axis arranged substantially horizontal and its sides in proximity to the sides of the pocket, the upper portion of said propeller projecting above said pocket, and said propeller having blades extending generally radially, and means for causing the material within the hopper to be forced in opposite directions sidewise into the spaces between the portions of the blades projecting above said pocket.

6. In a bag filling machine of the class described, the combination of a hopper having a discharge throat near its lower end and an upwardly opening pocket in alinement with said discharge throat, said pocket opening into said discharge throat, a propeller mounted in said pocket having its axis arranged substantially horizontal and its sides in proximity to the sides or the pocket, the upper portion or said propeller projecting above said pocket, said propeller having blades extending generally radially, means for causing the material within the hopper to be forced in opposite directions sidewise into the spaces between the portions of the blades projecting above said pocket, and means for causing the material in the hopper to be forced downwardly over the upper portion of the periphery of the propeller.

7. In 'a. bag filling machine of the class described, the combination or a hopper having a discharge throat near its lower end and an upwardly opening pocket in alinement with said discharge throat, a propeller mounted in-said pocket having its axis arranged substantially horizontal and its sides in proximity to the sides of the pocket and the upper portion thereof pro-, jecting above said pocket, said propeller having blades extending generally radially, and material feeding devices comprising screw conveyors for feeding the material in opposite directions sidewise between the upper portions of the blades, and a wheel having radially projecting blades for forcingthe material over the periphery of said propeller,

8. Ina bag filling said throat and means for feeding the material machine tr the class de scribed, the combination of a. hopper having a sidewise toward the uncovered portions of the sides of the propeller and into the spaces between the blades of said propeller.

9. In a bag filling machine of the class described,- the combination of a hopper having a discharge throat near its lower end and an upwardly opening pocket in alinement with said discharge throat, said pocket leading into said discharge throat, a propeller mounted in said pocket having its axis arranged substantially horizontal and at least one of its sides in proximity to one of the sides or said pocket, the upper portion of said propeller projecting above said side wall of the pocket, said propeller having blades on the periphery thereof, and means for forcing the material sidewise between the portions of the blades projecting above said pocket.

10. In a bag filling machine of the class described, the combination of a hopper having a discharge throat near its lower end and a pocket leading into said throat, a propeller having blades on the periphery thereof for propelling the material within the hopper through said discharge throat, the wall 01' said pocket covering a portion or at least one side of said propeller, and means for feeding the material sidewise into the spaces between the blades of said propeller.

RENEJARRER. 

